Answer to Question #268089 in Physics for John

Question #268089

A bus with a mass of 809 kg is moving at a constant speed of +5.1 m/s in a straight line. It is brought to rest in 22.0 seconds. The constant force is acting to stop the car is?

Expert's answer

"F=ma"

"v=v_0+at\\to a=(v-v_0)\/t=(0-5.1)\/22=0.23\\ (m\/s)"

"F=809\\cdot0.23=187.5\\ (N)" . Answer

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